National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Partly Cloudy

47°F

8°C

Humidity 36%
Wind Speed W 18 G 30 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 14 Mar 4:56 pm EDT
Extended Forecast for

South Dennis MA

High Wind Watch March 16, 05:00pm until March 17, 06:00am
Wind Advisory March 14, 05:09pm until March 14, 07:00pm
Click here for hazard details and duration
High Wind Watch
...
  •  
    Wind Advisory March 14, 05:09pm until March 14, 07:00pm

    NOW until 7:00pm Sat

    Wind Advisory

  • Tonight

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 44. Light and variable wind becoming northeast around 6 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 3am. Mostly cloudy, with a low around 35. Southeast wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9am. High near 55. South wind 14 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 35. South wind 15 to 17 mph, with gusts as high as 60 mph. Chance of precipitation is 100%.

    Low: 35 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am. Mostly sunny, with a high near 44. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. West wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 35. Northwest wind 5 to 7 mph.

    High: 35 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 29. West wind 6 to 11 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 44. Light and variable wind becoming northeast around 6 mph in the afternoon.
Sunday Night
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 35. Southeast wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9am. High near 55. South wind 14 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 35. South wind 15 to 17 mph, with gusts as high as 60 mph. Chance of precipitation is 100%.
Tuesday
A chance of showers before 8am. Mostly sunny, with a high near 44. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 22. West wind 9 to 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 35. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Light south wind.
Thursday
Partly sunny, with a high near 40. Southeast wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 44. Southwest wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 31. Southwest wind around 6 mph.
Saturday
A chance of rain. Partly sunny, with a high near 42. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
2:52 pm EDT Mar 14, 2026
Forecast Valid:
5pm EDT Mar 14, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation